This is an overly generalized take. While I agree with the overall premise of the message you are conveying, there are many other unaccounted factors. "Just break up" is much easier when the person isn't someone you have been together with for 20 years, have 3 kids and built a life together with.

Yes, the healthy thing is to recognize when it's time to throw in the towel. But walking away from something like that is not that easy. Everyone's situation is different and I didn't want others in similiar situation to feel diminished and dismissed.